Format
KJ
Koblasa, Josef
🇨🇿FIDE 386421· Male· Czech Republic· Born in 1962
Follow Josef KoblasaTrack his monthly FIDE ratings, games, tournaments and more.
Josef Koblasa, a 64-year-old Czech player, is rated 1900. He has fluctuated between 1884 and 1925 over the past 2 years. 10 rated games in the past year (≈24/year long-term). Recent standard appearances include 2. liga B 2025-2026 r10-11, UKSS - Krajsky prebor II A 2025-2026 r8-9, and UKSS - Krajsky prebor I 2025-2026 r7-8. His peak of 1949 was reached at age 58 (Apr 2020).
Current rating
1900
Standard
Rpd1849·Blz1903
All-time high
1949
−49 pts below
Apr 2020 · age 58
Apr 2020 · age 58
Activity
19
games / yr avg. · ≈2/mo
10 past 12 mo · ≈1/mo
classical only
Moderately active
classical only
Moderately active
Signature stat
#48,130
#48,130 · players worldwide · of 218,279
Career timeline
7 entries2020
All-time peak 1949
at age 58 · −49 from today
Apr 2020
2017
100 career games
at age 55
Oct 2017
2016
Best 12-month gain (+81 Elo)
1815 → 1896
Nov 2016
K-factor lowered to 20
at age 54
Jan 2016
2015
Crossed 1800
at age 53
May 2015
First FIDE rating
1865 · at age 53
May 2015
Standard rating history
Peak
FIDE title
Threshold
First rated
COVID-19
FIDE recal.
Activity & highlights
Top opponent
Evolution
-25
1925 → 1900
Tournaments
8
10 games
Score
4.5/ 1045.0%
4W1D5L
Top 3 wins
Top 3 losses
Last 12 months — tournaments
8 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Team | Mar 2026 | 1/1 | #56 | 2531 | +5.6 |
Team | Feb 2026 | 1/1 | #18 | 2700 | +10.4 |
Team | Feb 2026 | 1/2 | #31 | 1880 | -0.2 |
Team | Jan 2026 | 0/1 | #79 | 1146 | -8.4 |
Team | Jan 2026 | 1/1 | #38 | 2531 | +5.8 |
Team | Dec 2025 | 0/1 | #92 | 1068 | -10.8 |
Team | Nov 2025 | 0.5/2 | #63 | 1627 | -15.2 |
Team | Oct 2025 | 0/1 | #53 | 1061 | -11.8 |
Most-Played Opponents
vsJiri Chmelik
🇨🇿CZE·1907
+2 −2 =2
6 games·last met Dec 2023
View head-to-head →
vsPetr Reitinger
🇨🇿CZE·1872
+3 −2 =0
5 games·last met Jan 2024
View head-to-head →
vsVladimir Hadraba
🇨🇿CZE·2005
+0 −4 =1
5 games·last met Jul 2021
View head-to-head →
vsOndrej TomanFM
🇨🇿CZE·2325
+1 −3 =1
5 games·last met Mar 2019
View head-to-head →
Rankings
/
Czech Republic
#2,009
out of 6,361 players
Europe
#35,456
in continent
World
#48,129
out of 400,000+
National ranking
Europe & World
Europe
World
Czech Republic
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